Eaton 9PX 700 RT Installation And User Manual

Page 459PX 1-3 KVA US_ENENGLISH9. GlossaryBypass AC source Source supplying the bypass line. The equipment can be transferred to the by-pass line if an overload occurs on the UPS output, for maintenance or inthe event of a malfunction.Frequency converter Operating mode used to convert the AC-power frequency between the UPS inputand output (50Hz -> 60Hz or 60Hz -> 50Hz).Low-battery warning This is a battery-voltage level indicating that battery power is low and thatthe user must take action to prevent the imminent break in the supply of powerto the load.Backup time Time during which the load can be supplied by the UPS operating on batterypower.Load Devices or equipment connected to the UPS output.HE mode Operating mode by which the load is supplied directly by the AC source if it iswithin the tolerances defined by the user. This mode reduces the consumptionof electrical powerManual bypass Rotary switch controlled by the user, used to connect the loads directly to theAC source. Transfer of the load to the manual bypass enables UPS maintenancewithout interrupting the supply of power to the connected loads.Normal (double The normal UPS operating mode in which the AC source supplies the UPS whichconversion) mode in turn supplies the connected loads (after electronic double conversion).Normal AC source Normal source of power for the UPS.Relay contacts Contacts supplying information to the user in the form of signals.UPS Uninterruptible Power Supply.

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